Repeating firearm



L. V. OLSON.

RPEATSNG FREARM.

APPLJCATIGN FILED MNE IS, 1,919.

Patented Out. 12, 1920.

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.9W @NINE gli UNITI-:D srnrlzs LLOYD V. OLSON, F CLYDE, KANSAS.

BEPEATING FIBEABM.

Application led June 18,

TQ all 'whom it may concern.'

Be it known that I, LLOYD V. OLSON, a tizen of the United States, residing at lyde, in the county of Washington and State of Kansas, have invented -certain new and useful Im rovements in Repeating Firearms, of whic the following is a specification. 1

My invention relates to new and useful improvements in automatic repeating fire Y arms, and more particularly to the type emgloying a reciprocatory breech block and rin olt, the recprocatory movements of whic are controlled by the action of the tri ger. y

important' object of my invention resides in the provislon of means carried by the butt of the fire arm and governed by the tri ger for causing the fire arm to reload and at the same time retract the firing bolt to a position in readiness to fire again.

.Another object of' my'invention resides in the provision of means for preventing accidental discharge 'of the fire arm, should by accident the firing bolt become disengaged .from its retaining element.

Astill further object of the invention re- Sides' in the rovision of means actuated by the, breech b ook for permitting a cartridge 3Q from themaglazine to be positioned within en the cartridge chamber is the barrel .w am f further object of my invention resides in the provision of means for discharging the used shell from the barrel during jhf retraction of the breech block.

H 'lther ob'ects and advantages of the invgption wil become apparent during the ca vse of the following description.

n the accompanying drawings, forming a part of the descrlption, and wherein like l numerals are employed to designate like parte throughout the same,

Fi ure 1 is a side elevation of a fire arm to wich my invention is applied, and is vv.illlulsltrated in the act of discharging a used s e 2 is an enlarged longitudinal vertical section through the rear of a rifle showing the same in condition ready to be fired.

2Fig. 3 is an enlarged perspective view of the breech block retaining catch.

Fig. 4 is a longitudinal vertical section through the rear end of a rifle, illustrating the'v breech block recoiled whereby a car- Spccieation ot Let-ters Patent.

iatented oct. 12, 1920. 1919. serial No. 305,056.

tridge may be admitted to the cartridge chamber.

Fig. 5 is a longitudinal transverse section taken on the line 5 5 of Fig. 2, and

Fig. 6 is a transverse section taken on the line 6 6 of Fig. 2.

In the drawings, wherein is illustrated a preferred embodiment of my invention, the` numeral 7 designates the butt` stock of a rifle, the numeral 8 the frame, 9 the barrel` and 10 the breech block. The butt 7 and frame 8 are suitably chambered to receive the various parts ofthe invention, and their relative posltions with relation to the various parts of the rifle will be described during the course of the description.

A reciprocatory plate 11 is mounted upon the end of the butt 7 and accordingly forms a shoulder plate. This plate 11 is provided with a stem 13 which extends longitudinally through the butt of the rifie toward the `frame thereof. A spring 14 is mounted upon the stem 13 so that one end of the spring abuts against a wall in the butt while its opposite end abuts against the butt plate 11 to normally force the plate 11 from the, end of the butt. In order that the butt plate may reciprocate freely and properly, a `guide pin 15. is secured thereto and operates in a suitable opening in the butt 7. The inner end 16 of the stem 13 extends at an angle to be pivotally connected to one end of a connecting rod 17, and the other end of the connecting rod is pivotally connected to a depending breech block leg 18, The lower end 19 of the leg 18 is inclined upwardly and forwardly for a purpose which will hereinafter appear.

The breech block carries a spring pressed firing bolt 20, the inner end of which is provided with an enlarged head 2l, and the outer end is provided with a suitable linger grip 22. The forward end of the breech block is provided with a firing pin 23 and a suitable recess 24, in which is pivoted a scar 25. The seal' is provided with a longitudinally extending slot therein, and one end of this seal' is pivoted to the breech block adj acent the forward end thereof, while the opposite end 27 is adapted for engagement wi a spring pressed member 28 mounted within the depending leg 18 of the breech block and normally retains the scar 25 in a substantially horizontal position. Upstand ing inclined lugs 29 are formed upon the Sear 25 intermediate its ends, one on each side of the slot therein.

Referring to Fig. 2 of the drawings, the release element 30 is slidably mounted n the forward end of the chambered portion of the frame and its upper end extends through the longitudinal y extending slot in the scar 25. he upper end of this release element is inclined upwardly and rearwardly whereby the bolt head 21 may pass this end of the release element and be retained in a retracted position. A flat Sprin 32 has one end secured between the stock o the rifle and the tri ger guard 33 so that its free end engages te lower end of the released element 3Q. A shoulder 34 is 'provided in the upper end of the release element for enga ement with the end 27 of the scar whcrcb t 1e release element may swing the scar 25 ownwardly to release the firing bolt. In order that the release element may assist in the retraction of the breech block, a pin 35 is arranged transversely through the release element 30 ad'acent its lower end. The lower end of t e release 30 is passed between the arms 36 of a breech block retainin catch, which is more clearly illustrated in` ig. 3 ofthe drawings, and the lower end of the release element is provided with a shoulder 37 for engagement with a trigger 38, The forward end of the breech block retaining catch is pivotally mounted in the forward end of the frame, while its rear end 39 is provided with an upstanding lug, which is normally engaged with the lower end of the leg 18 of the breech block. A sprin 40 is secured within the frame and secure to the breech block retaining catch 36 so as to retain said catch in such position that the lug 39 thereon will engage with the leg 18 of the breech block. As clearly shown in Fi 2 and 4 of the drawings, the upper en ofV the trigger -38 extends between the arms 36 of the breech block retaining catch to engage with the shoulder 37 on the release element 30.

Then the breech block is in a position to fire the gun, and the firing pin has been actuated to discharge the cartridge, in order to reload the rifle, the tri ger is actuated in the same direction as to gre the rifle, but a substantial distance farther so that through its engagement with the release element 30, the release element will be moved downwardly against the tension of the spring 32. After the release element has traveled a substantial distance downwardly, the pin 35 thereon engages with the breech block retainin catch 36 to swing downwardly where y the lug 39 thereon is disenga ed from the breech leg 18 so that the butt p ate 11 and the breech block will be moved rearwardl of the rifle. By reason of the Sear 25 being carried by the breech block and provided with the lugs 29, during the rearward movement of the breech block, the firin bolt will of course be carried rearwar ly also until the enlarged head 2l of the firing bolt enga es with the inclined end 31 of the release cement 30, whith action will cause the release member @o move slightly downwardly to permit the passage of this enlar red head of' the firing bolt. 'l hen, after the lead of the firing bolt has passed over the inclined head 31,.the release member,y will immediately spring up into its normal position to engage with the forward end 'of the" firing bolt head to prevent for ward movement of the same. After the new cartridge has been forced into the breech chamber of the rifie the rifie is retained against the shoulder of the marksman and drawn toward him until the butt plate 11 is forced into engagement with the rear end of the butt. This action will of course move the breech block forward into its closed position and causes the coiled spring on the firing bolt to he compressed by reason ol' the inability of the firing bolt to mow forwardly with the breech block since it is engaged with the shoulder 34 of the release element 30. iDuring the forward movement of the breech block, the inclined end 19 of the leg 18 will engage the inclined end of the lug 39 so as to force the breech block retaining catch downwardly suflicientlyL for the lug 39 to engage the lower end of the leg 18 and retain the breech block in its closed position. Since the scar 25 is pivotallv connected to the breech block, it too, will move forwardly with the breech block and the lugs 29 thereon will slide under the head 21 of the firing bolt, since the senr 25 will be permitted to swing downwardly by depressing the spring pressed member 2S carried by the leg 18 of the breech block. As more clearly shown in Fig. 2 of the drawings, when the breech block is closed, the shoulder 34 of the release element will engage with the end 27 of the Sear 25 so that Vwhen the release element moves downJ wardly it will swing the scar downwardly sufliciently for the lugs 29 to permit `the un- In order that a new cartridge maybe sup; ci plied to the barrel of the rifle as soon as the ex )loded shell has been removed therefrom, provide a magazine 4l which is detachably retained in the frame of the rifle. I provide a lug 42'on the side of the magazine for engagement with the inner inclosed end 43 of a magazine release 44 having pivotal connection intermediate' itsy ends with the frame of the rifle. The exposed end 45 of the release 44 is urged through a slot 46 in the tiframe as more clearly shown in Fig. 1 a coil spring 47 exerting a pressure upon the concealed end 43 of the magazine release.`

A spring 48 in the magazine is adapted to urge the usual platform toward the mouth of the magazine for expelling the cartridges indicated by the numeral U. As more 5` clearly shown in Fig. 6 the' upper portion of the magazine 4l is provided with a sliding cover 51, which cover governs the release of a single cartridge at a time, from the magazine. In order that the cover may travel with the breech block, it is provided with an upstanding lug 52 which fits in a suitable recess in the breech block. As shown in Fig. 2 of the drawings, the cover 51 of the magazine is closed upon the top of the magazine and retains the cartridges within the magazine under the tension of the coil spring therein. Acoordin ly, when the breech block moves rearwar ly it carries with it the cover` 5l and accordingly the top cartridge in the magazine will be permitted to enter the cartridge chamber The means I provide for throwing out the used shells from the barrel and cartridge chamber 53, is carried by the forward end of the breech block. This means as more clearly shown in Fig. 5 of the drawings consists of a spring pressed plunger 54 extending forwardly of the breech block and normally protruding from the forward end thereof. The coacting element of the cartridge expelling means is in the form of a spring pressed catch pivoted at its inner end to the breech block in such a manner that the forward hooked end 56 of the catch is normally urged inwardly for engagement with the flange of a cartridge. From this, it will be clearly evident that when the top cartridge in the magazine is permitted to travel into the cartridge chamber 53, and the breech block moves forwardly, the plunger 54 and Acatch 55 will engage the end of the cartridge and force it into the barrel of the ride. When the cartridge has been placed within the barrel, the spring pressed plunger 54 will be forced within the breech block, while the pivoted spring pressed catch 55 will be swung outwardly so thatl the hooked end 56 thereof will hook or catch over the flange of the cartridge. YAfter the cartridge has been discharged,` and the breech block moves rearwardly ofthe rifle, it will carry with it the used shell. The tendency of the plunger 54 and the spring catch 55 is to cast the used shell to one side of the rifle, but while the used shell engages with the bore through the barrel, it will be. prevented from being moved in this direction until after the shell disengages from the bore through the barrel, then it will be cast out from the side of the rifle through the opening 58 by the plunger 54.

The foregoing description and the drawings have reference to what may be considered the preferred, or approved, form of in- 66 vention. It is to be understood that I may make such changes in construction and arrangement and combination of parts, materials, d1me'ns1ons, etc., as may prove expedient and fall within the scope of the appended claims.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is.'

l. In a repeating fire arm, the combina.- tion with'a breech block and a trigger, of means for releasing and retracting said breech block by further movement of Said trigger after the fire arm has been dischar ed.

2. n a repeating lire arm, the combination with a reciprocatory breech block, a trigger, a reciprocatory butt plate, means connectin said butt plate with said breech block, aoreech block check pivotally connected to the Vfire arm frame and engaging said breech block, whereby actuation of said trigger disengages said breech block check from said breech block to permit the butt plate and breech block to move rearwardly of the fire arm.

3. In a repeating ire arm, the combination with a movable breech block havin u. firing bolt mounted therein, a trig er or operating said bolt, of a butt plate or controlling said breech block, a' breech block check for retaining said breech block and butt plate in a closed position, and means for governing said firing bolt and breech block chesk and operable by said trigger.

4. In a repeating {lre arm, the combination with a movable breech block having a. firing bolt mounted therein, a trigger for actuating said bolt, of' a butt plate normally urging said breech block to a retracted position, a breech block check pivotally mounted in the fire arm frame and normally retaining said breech block in a closed position, and a slidable release element for governing said Afiring bolt and having means thereon for engagement with the breech block. check whereby when the trigger is actuated, the butt plate causes retraction of tle breech block. y

' 5. In a repeating fire arm, the ,combination with a movable breech block, having a 116 firing bolt therein, a sear pivotally connected to the breech block, a trigger for releasing said firing bolt, of a butt plate` pormfally urged rearwardly of the fire arm for retrfacting said breech block, checking means for 120 preventing retraction of said breech block, and means operable by said trigger and engaging said checking means andsear for governing the movement of said firing bolt and said butt plate. I

6. In a repeating fire arm, the combination with a reciprocatory breech block havy ingl a spring' pressed firing bolt mounted therein and a trigger for controllin said bolt, of means for retracting said breech 180 block, a breech block check for retaining said breech block in a closed position, said breech block check having a slot therein, a slidable element for engagement with said firing bolt having its lower end o` erating throug the slot in said breech b ock check, said slidable element having connection with said trigger, and an abutment carried b said slidable element for engagement Wit said breech block check for actuating the same to release and cause rearward movement of said breech block.

7. In a fire arm, the combination with a movable firing bolt, a trigger, a movable element operated by the tugger and engaging the firing bolt to maintaln the same in a retracted osition, of a Sear actuated by said movable e ement, and said Sear havin means thereon for preventin complete orward movement of the firing lt when the trigger naamw:

is accidentally manipulated, but said means permitti'n comillete forward Nmovement of the firing olt w en the trigger is poltively engaged. i

8. A fire arm includin bolt, a tri ger, a Sear, sai Sear havin means thereon or preventn com lete onward movement of the firing olt w en the triA l) is not positively engaged, and a movablergee;

sald trigger .and having"5l)` through said Sear and en- LLOYD V. OLSON.

Witnesses:

HENRY G. OLsoN, C. A. Balm).

a movable ring 25 

